LINK 1:
LINK 2:
Center for Disease Control. www.cdc.gov CDC on Physical Activity: http://www.cdc.gov/physicalactivity/everyone/guidelines/index.html
LINK 1:
LINK 2:
Center for Disease Control. www.cdc.gov CDC on Physical Activity: http://www.cdc.gov/physicalactivity/everyone/guidelines/index.html